Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Explain about the colour sense, Explain about the Colour Sense Colour S...

Explain about the Colour Sense Colour Sense  is  the faculty whereby we are enabled  to  distinguish colours as  excited by  light of  different wave  length. The ability  to a

Skeleton, what are the biological significance of the skeleton?

what are the biological significance of the skeleton?

What are protein hydrolysates, What are protein hydrolysates? Proteins...

What are protein hydrolysates? Proteins that have been treated with enzymes to break them down into amino acids or shorter peptides are referred to as protein hydrolysates. Pr

List the routine treatment sequence for an implant patient, List the routin...

List the routine treatment sequence for an implant patient. The different phases are - Preliminary treatment - Stage I surgical phase - Stage II surgery and Prosthetic

What are the inheritance patterns of the rh blood system, What are the inhe...

What are the inheritance and dominance patterns of the Rh blood system? The inheritance pattern of the Rh blood system is autosomal dominant, i.e., the heterozygous manifests a

Explain lactate dehydrogenase, Lactate dehydrogenase (LDH) is one of the im...

Lactate dehydrogenase (LDH) is one of the important enzymes in glycolysis which catalyzes the interconversion of pyruvate and lactate as follows:   Functional lactate d

Explain membrane-bound organelles, Membrane-bound organelles are absent in ...

Membrane-bound organelles are absent in : 1. Saccharomyces 2. Streptococcus 3. Chlamydomonas 4. Plasmodium Streptococcus

Requirement of folic acid and vitamin b12 during pregnancy, Determine Requi...

Determine Requirement of Folic acid and vitamin B 12 During pregnancy? Folic acid and vitamin B 12 are important for production of new cells. DNA must replicate and transmit

How far from the building should the fire hose be located, A fire hose ejec...

A fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s. Assuming that the water behaves like a projec

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd